Bobbin holder-case for sewing-machines.



No. 709.886. Patented Sept. 30, I902.

A. DURING.

BOBBIN HOLDER CASE FOB SEWING MACHINES.

(Application filed June 12, 1902.)

(No Model.)

UNITED STATES PATENT OFFICE.

ALBERT DRING, OF DRESDEN, GERMANY, ASSIGNOR TO AKTIENGESELL- SOHAFT,VORMALS SEIDEL dc NAUMANN, OF DRESDEN, SAXONY, GER- MANY.

BDBBIN HOLDER-CASE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 709,886, datedSeptember 30, 1902.

Application filed June 12,1902. Serial No. 111,384. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT DoRlNG, a subject of the King of Saxony,residing at Dresden,Germany, have invented certain new and usefulImprovements in Bobbin Holder-Cases for Sewing-Machines, of which thefollowing is a clear, full, and exact specification.

The present invention relates to an improved construction'ofsewing-machine bobbin holder-case bymeans of which the two halves of thecase can be closed simply and eflectively, the said halves for thepurpose of removal or insertion of the bobbin having to be turned back.Means are also provided whereby the bobbin is prevented from slidingdown on the opening of the case. This is efleeted by the hinged half ofthe casing being held against the rigid half by a catch device-that isto say, it is locked by a bolt, a

fork, moreover, coming into operation to hold the bobbin ondisengagement of the bolt.

In the annexed drawings one form of construction of my invention isillustrated.

Figure 1 is an elevation of the device. Fig.

2 is a cross-section taken through Fig. 1.

Fig. 3 is an end View, the bolt being in operation. Fig. 4: is a likeview to Fig. 1, the device being here shown open. Fig. 5 is an end viewof Fig. 4. Fig. 6 is a plan view of Fig. 1.

The bobbin-case is carried by an arm a, one end of which is providedwith a hole whereby it may be rigidly or rotatably mounted on themachine-frame, while the other end constitutes the rigid half I) of thebobbin-case.

3 5 The second half 0 is hinged to the drum-arm d of thearm a, so thatit can be turned back.

In the center of the bobbin half a is pivoted a lever 6, one arm 6 ofwhich serves as handle, while the other can be turned as bolt before thearm d when the case 6 is to be 0 closed. The surface on which the catchslides is slightly inclined for the purpose of enabling tight closing ofthe parts. To the part c a fork g is hinged at f, the two prongs h h ofwhich take over the edge of the bed of 5 the bobbin and over the latteritself when the hook is turned. This occurs simultaneously withdisengagement of the bolt 6, the. latter sliding from the surfaceagainst which it has been reposing. For this purpose on the axis of thelever e is mounted a disk 2', having a camsurface 7t, which presses thefork in the direction of the bobbin against the action of a spiralspring Z, located at the hinge, which spring presses back the fork againwhen the lever is turned over in opposite direction-- 2'. e., when thecase is again closed. When the bobbin-case is closed, the thread can runfreely over the bobbin. On being opened,however, the two hooks h h ofthe fork 9 come below the bobbin and prevent its sliding down.

Having thus described myinvention, What I claim as new, and desire tosecure by Letters Patent, is

A sewing-machine bobbin-case carrier,comprising a double armed pivotalcatch one arm of which constitues a bolt for the movable half of thecase, a cam device actuated by the said catch, and a hinged forkoperated by said device, for preventing the bobbin 7o sliding down onopening the case, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses ALBERT DORIh G.

Witnesses:

PAUL E. SCHILLING, PAUL AREAS.

